io Britton: Si i dies OF West Indian plants XII 



13. Dorstenia jamaicensis Britton, Bull. Torrey Club 35: 



Limestone cliffs, Manchester, Jamaica. 

 73. UNDESCRIBED SPECIES FROM PORTO RICO 



Maytenus ponceana Britton, sp. nov. 



A tree about 12 m. high, with slender, somewhat tortuous, 

 glabrous twigs. Leaves oblong, or oblong-obovate, coriaceous, 

 9 cm. long or less, indistinctly few-veined with the midrib rather 

 prominent on both sides, shining above, dull beneath, the apex 

 bluntly short-acuminate or obtuse, the base subcuneate, the 

 rather slender petioles 6-8 mm. long; fruiting pedicels 3-5 mm. 

 long, solitary or 2 together in the axils; fruit globose, whitish, 

 6-8 mm. in diameter. 



Hillside, Rio Portugues, north of Ponce {Britton 78 iS). In 

 fruit Feb. 12, 1923. 



Eugenia Underwoodii Britton, sp. nov. 



A shrub, 2.5-3 m. high, much branched, the very slender 

 gray terete twigs puberulent when young, the inflorescence 

 pubescent. Leaves elliptic or elliptic-lanceolate, chartaceous, 

 2-5 cm. long, slightly paler green beneath than above, somewhat 

 shining, delicately veined and scarcely reticulated, rather coarsely 

 punctate, flat, the apex acuminate, the base narrowed, the 

 puberulent petioles 1.5-2.5 mm. long; flowers in small short- 

 peduncled racemes near the ends of the twigs; pedicels 2-3 mm. 

 long; bracts about 1 mm. long; calyx-tube campanulate, glabrate, 

 about 1.5 mm. long, the lobes a little shorter, puberulent, ciliate, 

 obtuse; petals nearly 2 mm. long; fruit unknown. 



Collected at Yauco. (L. M. Undenvood & R. F. Griggs, 



639) 



Eugenia boqueronensis Britton, sp. nov. 



A tree about 8 m. high, the slender short twigs gray, densely 

 tomentose when young. Leaves ovate or elliptic-ovate, cori- 

 aceous, 2-3.5 cm - l n g, shining, nearly equally green on both 

 sides, coarsely blackish-punctate, finely pinnately veined and 

 scarcely reticulated, pubescent on the midvein beneath when 

 young, glabrous or very nearly so when mature, the apex abruptly 

 and bluntly acuminate, the base narrowed, the stout pubescent 

 petioles 2-3 mm. long; racemes few-flowered, about I cm. lons^, 

 borne in the uppermost axils, densely tomentose; pedicels about 

 3 mm. long; bracts oblong, shorter than the pedicels; calyx-lobes 

 broad, rounded or obtuse, about 1.5 mm. long; petals rounded, 

 not longer than the calyx-lobes; fruit unknown. 



